Article
Engineering, Mechanical
Bobby Satheesan, Abdul Samad Mohammed
Summary: The study improved wear resistance by adding graphene oxide fillers to epoxy system, but did not observe significant enhancement in wear life with the addition of titania fillers. Coating failure and wear mechanisms were analyzed using various techniques such as coefficient of friction graphs, SEM imaging, EDS for elemental analysis, optical profilometry, and optical microscopy for counterface imaging.
Article
Engineering, Environmental
M. S. Azami, A. A. Jalil, N. S. Hassan, I Hussain, A. A. Fauzi, M. A. A. Aziz
Summary: In this study, fibrous silica-titania was prepared via the microemulsion method and modified with three types of carbonaceous materials, with graphitic-carbon nitride showing the best photocatalytic performance. The interaction between carbonaceous materials and FST contributed to the enhancement of catalyst performance through appropriate dispersion and interaction, leading to a significant improvement in photodegradation efficacy.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Physics, Applied
Qiyan Zhang, Mitsuhiro Honda, Yo Ichikawa
Summary: ZnS/ZnO nanocomposites were fabricated by a simple coating method, exhibiting higher photocatalytic activity due to the separation and transfer of photoexcited carriers at the contact. Additionally, thermal pre-treatment on ZnO thin films improved crystallinity and enhanced photocatalysis by extending the lifetime of the photoexcited carriers.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Physical
Amanda Chen, Wen-Fan Chen, Tina Majidi, Bernadette Pudadera, Armand Atanacio, Madhura Manohar, Leigh R. Sheppard, Rong Liu, Charles Christopher Sorrell, Pramod Koshy
Summary: Uniformly codoped anatase TiO2 thin films with equal Mo and Cr concentrations were fabricated using sol-gel spin coating and ion implantation. Both methods did not result in homogeneous dopant distributions, leading to decreased crystallinities and partial amorphisation. The photocatalytic performances of the films were poor and correlated with the band gap, indicating the effects of different doping methods on performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Nguyen Thi Quynh Anh, Ha Minh Ngoc, Nguyen Van Noi, Nguyen Huu Van
Summary: In this work, a TiO2-PAA-GO hydrogel photocatalyst was successfully synthesized using a hydrothermal method. The formation of cross-link bonds within the TiO2, GO, and PAA nanocomposite was confirmed by XRD, FTIR, SEM, and XPS results. The TiO2-PAA-GO composite exhibited high removal efficiency for direct blue 71 (DB-71) due to reduced bandgap energy, reduced electron and hole recombination, increased output of generated electrons, and high specific surface area. After six reaction cycles, over 95% of the DB-71 was removed using the TiO2-GO-PAA photocatalyst.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Physical
Italo Lacerda Fernandes, Danns Pereira Barbosa, Sergio Botelho de Oliveira, Valdeir Antonio da Silva, Marcelo Henrique Sousa, Marly Montero-Munoz, Jose A. H. Coaquira
Summary: The study demonstrates that the double-coated magnetic nanoparticles nanocomposites exhibit excellent photocatalytic activity with strong degradation capability against methylene blue dye, as well as high stability. These nanocomposites have great potential for applications in wastewater treatment and purifying contaminants.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Pengchao Qiao, Ao Zhang, Rui Sun, Wei Wang
Summary: This study presents a simple quaternary templating system that can directly obtain SBA-15-type mesopore frameworks embedded with high-content TiO2 nanoparticles. The formation of well-defined mesostructures is achieved through a self-assembly process and hydrothermal treatment. The TiO2/SBA-15 composites exhibit high activity and good reusability in photodegrading Rhodamine B and humic acids, as well as photoreducing highly toxic Cr6+ in water under UV irradiation.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shuangmei Xue, Cheng-Wei Lin, Chenhao Ji, Yaoli Guo, Liping Liu, Zhe Yang, Shuzhen Zhao, Xingke Cai, Qingshan Jason Niu, Richard B. Kaner
Summary: Building a nanofiltration membrane with a hybrid dimensional titania interlayer can improve the separation performance, increase the flux and retention, and enhance the pressure resistance of the membrane.
Article
Chemistry, Physical
Lucas M. C. Silva, Bruno S. Goncalves, Jorgimara de O. Braga, Tarcizo C. de Souza, Vinicius G. de Castro, Glaura G. Silva, Glenda R. B. S. Lacerda, Tulio Matencio, Tiago C. Barbosa, Carlos M. Viana, Manuel Houmard, Eduardo H. M. Nunes
Summary: Smooth and optically transparent titania (TiO2) and TiO2-reduced graphene oxide (RGO) composite films were successfully prepared by combining sol-gel process and hydrothermal treatment. UVA light promoted the reduction of GO to RGO, increasing electrical conductivity and hydrophilicity. Heat treatment decreased water contact angle and increased surface energy by removing organics residues and burning graphene.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Stanislav D. Svetlov, Dmitry A. Sladkovskiy, Kirill V. Semikin, Alexander V. Utemov, Rufat Sh. Abiev, Evgeny V. Rebrov
Summary: An evaporation-deposition coating method was developed to coat the inner surface of long quartz tubes with continuous titania coatings, with a specific temperature and flow rate range. The coatings have controllable thickness and porosity, which can be reduced by increasing the liquid flow rate. The coatings showed similar activity to a commercial P25 titania catalyst in photocatalytic decomposition tests.
Article
Chemistry, Applied
Baha Demir, Ahmed F. Abdelaal, Mirza Murtuza Ali Baig, Abdul Samad Mohammed
Summary: Epoxy coatings are commonly used for corrosion protection, but their limitations in mechanical and thermal properties hinder their use in applications requiring protection against wear and tear. Epoxy composite coatings, reinforced with different fillers, address this challenge. However, selecting suitable fillers and determining the optimal amount remain a challenge. This research compared the performance of five different fillers (carbon nanotubes, graphene, alumina, titanium dioxide, and ceria) in enhancing the properties of epoxy coatings. Results showed that 0.5 wt% alumina had the highest hardness, while 3 wt% alumina had the best thermal conductivity among all fillers tested.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2023)
Article
Chemistry, Physical
Adil Alshoaibi, Shumaila Islam
Summary: Sol-gel-based titania nanoparticles, Silica-titania nanocomposite, and zinc supported silica-titania nanocomposites were synthesized at low temperature. The study showed that zinc nanoparticles were homogeneously distributed in the silica-titania nanocomposite, and the doping of zinc enhanced the photocatalytic activity of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Jiangyan Xu, Minjia Sun, Chunyong Zhang, Meisheng Wu, Degang Fu
Summary: The study successfully utilized BDD technology for the degradation of DB71 dye, determining optimal operating conditions and proposing a plausible degradation sequence for DB71 in BDD anode cells based on experimental results.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Huda Mahmood Al-Attar, Haitham T. Hussein, Rafid S. Zamel, Ali J. Addie, Mustafa K. A. Mohammed
Summary: A green approach using pulsed laser ablation of liquid (PLAL) was used to synthesize a ternary nanocomposite of ZnO/CuO/Al2O3, which showed highly crystalline structure and enhanced photocatalytic activity. The optimized ratio of 3:1:1 at pH = 10.37 achieved the highest degradation efficiency of 98.55% after 15 minutes of illumination.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Materials Science, Ceramics
A. G. Abd-Elrahim, Doo-Man Chun
Summary: ZnO-graphene nanocomposites deposited on a nickel foam substrate through a kinetic spray process exhibited enhanced photocatalytic activity for methylene blue degradation. The incorporation of graphene species resulted in a decreased optical bandgap and improved visible light harvesting, leading to higher degradation efficiency and reaction kinetics rate constant in comparison with other nanostructured photocatalysts.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)